Celebrating our history. building the future.

Watch our Anniversary Video!

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Transmission

Any configuration. Any voltage. Any terrain.

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Irby is Looking for A Few Good (Line)Men

We’re hiring! Take a look at our careers page for more information.

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Emergency Restoration

Hurricane season is here and we are ready!

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Bozeman Road Distribution Work

Featured Distribution Project

Irby Construction was awarded the Bozeman Road Project in May of 2017 by Entergy Mississippi. The project scope consisted of adding three new circuits out of the existing Bozeman Rd Substation in Madison, MS due to a new transformer addition.

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Port St. Joe to Callaway 230kV Rebuild

Emergency Storm Restoration

Hurricane Michael made landfall on October 10th, 2018 near Mexico Beach, Florida. Duke Energy’s 230kV 34-mile PX line from Port St. Joe to Callaway was damaged beyond repair.

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IRBY CONSTRUCTION COMPANY builds power infrastructure on a turnkey basis. As a premier transmission construction company, we have built high-voltage power line projects that span the entire United States— from the pacific coast to the eastern seaboard. Our work has even taken us to other countries across the globe. Irby also constructs and connects substations and distribution systems. So, our scope of services covers power delivery systems every step of the way—from generation, down the line and into homes and businesses. 

Transmission
Foundation
Distribution
Renewables
Substation
Telecommunications
Outdoor Lighting
Emergency Restoration
BESS
Data Centers

We’re Like Family at Irby

We started as a family business and have carried that culture forward. There’s a pride that comes with working here and it shows in our work. Irby Construction Company’s extraordinary record of success can be attributed to our people who are among the most respected, experienced and talented in the industry. More than a company name that has been around for generations, Irby brings to the table a team of people who have been in this business for decades.

Want to learn more about us? Watch the video here or on Vimeo.

Irby Construction: Proud Past, Clear Future from Irby Construction Company on Vimeo.

FEATURED PROJECTS

Hurricanes Helene & Milton Emergency Response

Hurricanes Helene & Milton Emergency Response

September 4, 2025
Destin Resiliency and Rebuild Projects

Destin Resiliency and Rebuild Projects

September 4, 2025
SMT Houston IV BESS Project

SMT Houston IV BESS Project

September 4, 2025
Duke Energy – Mosaic APW AF Line

Duke Energy – Mosaic APW AF Line

September 3, 2025
Jefferson Davis Electric Cooperative 230KV T-Line System Loop Upgrade

Jefferson Davis Electric Cooperative 230KV T-Line System Loop Upgrade

September 3, 2025
Storm Damage Assessment After Hurricane Ian

Storm Damage Assessment After Hurricane Ian

August 11, 2023
Patterson – S. Nashville 138kV Transmission Line Rebuild Project

Patterson – S. Nashville 138kV Transmission Line Rebuild Project

October 12, 2022
Entergy Harahan-Avondale

Entergy Harahan-Avondale

July 20, 2022
FPL EVolution HUB

FPL EVolution HUB

February 10, 2022
New England Clean Energy Connect Transmission Line

New England Clean Energy Connect Transmission Line

February 1, 2022
Sunshine Gateway Battery Energy Storage Center

Sunshine Gateway Battery Energy Storage Center

August 27, 2021
Manatee Battery Energy Storage Center

Manatee Battery Energy Storage Center

June 22, 2021

WATTS IN THE NEWS

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CONTACT US:

318 Old Highway 49 South
Richland, Mississippi 39218-9449

Phone: 601-709-4729
Email: [email protected]

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Irby Construction Company

Irby Construction Company

2 days ago

Irby Construction Company
Irby Construction Company is a proud local sponsor of the American Heart Association's 2026 Palm Beach County Go Red for Women campaign. ❤️This past week, Irby team members Lisa Martin, Desiree Bernardo, Tamera Flowers, Sherry Fogarty, and Renee Nichols represented our company at the Go Red for Women event at the PGA National Resort, standing alongside a powerful community dedicated to women’s heart health.Cardiovascular disease remains the leading cause of death for women, with nearly half of women over 20 living with some form of CVD, yet only about half are aware of the risk. Go Red for Women is working to change that by raising awareness, closing gaps in care, and empowering women to take charge of their health.For more than 20 years, this movement has connected and inspired women at every stage of life, because when women come together, real change happens.Together, We Go Red.#GoRedForWomen #AmericanHeartAssociation #IrbyConstruction #WeAreQuanta Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

3 days ago

Irby Construction Company
Up where the work matters ⚡️Precision, teamwork, and a commitment to keeping your power flowing—day in and day out!#IrbyConstruction #AbsolutePerformance #wearequanta #quantaprojects Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

4 days ago

Irby Construction Company
As Lineman Appreciation Day 2026 comes to an end, we honor the brave men and women who keep the lights on every day. Linemen work through demanding conditions to deliver something most people never have to think twice about: reliable power. That commitment keeps communities strong both now and in the future.To our Irby Linemen specifically: thank you for the meaningful work you do and the standards you uphold. You are the backbone of this company, and we are proud to honor you on this special day.It's your last chance! Leave a note of thanks to our amazing linemen here: www.irbyconstruction.com/thank-a-lineman/#IrbyConstruction #AbsolutePerformance #LinemanAppreciationDay #wearequanta Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

5 days ago

Irby Construction Company
To close out our Lineman Appreciation Day Series, we're spotlighting Andrew Villars, Justin Stewart, and Marcus Rosenzwig, who are Irby Journeyman linemen. Across the South, our linemen and field crews bring grit, skill, and a level of pride to every aspect of their work. We're proud to honor you this Lineman Appreciation Day. #IrbyConstruction #AbsolutePerformance #LinemanAppreciationDay #wearequanta Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

5 days ago

Irby Construction Company
Meet our next Lineman Appreciation Day Spotlights: Connor Knowles, Journeyman Lineman, and Tor Sehnert, Apprentice Lineman III.Click through to learn more about Connor and Tor and their unique perspective as linemen. And don't forget to leave a note of thanks for the linemen in your life on our Irby "Thank a Lineman" page! đź”— irbyconstruction.com/thank-a-lineman#IrbyConstruction #AbsolutePerformance #LinemanAppreciationDay #WeAreQuanta Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

5 days ago

Irby Construction Company
We're kicking off our Lineman Appreciation Day Spotlights with Nathan Peterson, Journeyman Lineman, and Fernando Abarca, Lineman Foreman.Scroll through to learn what being an Irby lineman means to Nathan and Fernando, and the standards they bring to the job every day.While you’re here, drop a note of thanks on our Irby “Thank a Lineman” page: 🔗 irbyconstruction.com/thank-a-lineman#IrbyConstruction #AbsolutePerformance #LinemanAppreciationDay #WeAreQuanta Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company is a wholly-owned subsidiary of Quanta Services, Inc. (NYSE: PWR).